Green tea contains caffeine and tannins, an antioxidant that can mess with iron absorption. So drinking it at certain times ...
Drinking green tea with L-theanine can cause calm alertness because the caffeine in the tea wakes you up, while L-theanine promotes relaxation.
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8 Teas to Drink When You Have a Cold

There are many teas you can drink when you have a cold, but the best options help alleviate your symptoms. Here are some top choices to try.
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Mike Wakeman, researcher, pharmacist and the brains behind Evera Nutrition, explained: “These medicines primarily work by ...